Page Controller provide more flexible way of adding the a Page Rule while you are adding Page. You can see the Page Controller Widget on the right navigation. Click on the highlighted link to add a rule to this Page.
On clicking on the "Add New Page Rule" link from the previous slide, the control will be carried to Add Page Rule with the selected Page "Whether forecasting". See the highlighted.
Once Page is chosen then add desired business logic, in this case City condition is added with option Append Image. So the page will include show a popup for the Hyderabad users.
After saving the Page Rule, user is redirect to Add Page screen from where user started.